<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			#d1{
				height: 1800px;
				width: 2000px;
				border:2px solid gold;
				background-color: #0000FF;
				background-image: url(../images/jixue.jpg);
				background-repeat: no-repeat;
				background-size: 30%;
			}
			#d2{
				height: 800px;
				width: 800px;
				border: 1px solid gray;
				background: linear-gradient(to right,red,green,blue,black,gold,pink);
			}
			#d3{
				height: 800px;
				width: 800px;
				border: 1px solid gray;
				background:radial-gradient(red 5%,green 20%,blue,yellow);
			}
		</style>
	</head>
	<body>
	<div id="d1">1</div>
	<div id="d2"></div>
	<div id="d3"></div>
	</body>
</html>
